:root{color-scheme:light;--ink:#202d27;--muted:#79847d;--green:#285b42;--line:#e3e9e4;--paper:#f5f7f5;--app-height:100dvh;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent;color:inherit}button:disabled{cursor:default}button:focus-visible,a:focus-visible{outline:2px solid var(--green);outline-offset:3px}input,textarea{outline:none}input:focus,textarea:focus{border-color:#679c7b}button,a{touch-action:manipulation}a{color:var(--green);text-underline-offset:3px;overflow-wrap:anywhere}[hidden]{display:none!important}svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin:0}button.primary{border:0;border-radius:14px;background:var(--green);color:white;min-height:52px;width:100%;font-weight:600}button.primary:disabled{opacity:.55}.error{font-size:13px;color:#b34040;min-height:18px;line-height:1.5}.login-screen{min-height:100svh;padding:calc(52px + env(safe-area-inset-top)) 28px calc(28px + env(safe-area-inset-bottom));max-width:480px;margin:auto}.login-brand{display:flex;align-items:center;gap:12px;font-weight:650;letter-spacing:.02em;margin-bottom:42px}.login-screen h1{font-size:30px;line-height:1.5;letter-spacing:-.9px;font-weight:650}.login-description{color:var(--muted);font-size:14px;line-height:1.7;margin-top:12px}.login-form{display:flex;flex-direction:column;gap:10px;margin-top:36px}.login-form label,.settings-form label{font-size:13px;font-weight:600}.login-form input,.settings-form input{width:100%;min-width:0;height:52px;background:white;border:1px solid var(--line);border-radius:12px;padding:0 15px;font-size:16px}.login-form label:not(:first-child){margin-top:10px}.password-input{position:relative}.password-input input{padding-right:65px}.password-input button{position:absolute;right:5px;top:4px;height:44px;min-width:52px;font-size:13px;border:0;background:none;color:var(--muted)}.login-foot{text-align:center;color:var(--muted);font-size:12px;margin-top:24px;line-height:1.7}.workspace{height:var(--app-height);max-width:600px;margin:auto;display:flex;flex-direction:column;overflow:hidden;position:relative;padding-top:env(safe-area-inset-top);background:#fafbfa}.topbar{height:72px;flex-shrink:0;padding:6px 14px;display:flex;gap:8px;align-items:center;background:var(--paper)}.icon-button{border:0;background:transparent;width:44px;height:44px;display:grid;place-items:center;flex-shrink:0;font-size:28px;border-radius:12px}.icon-button:active{background:#e4ebe6}.heading{min-width:0;flex:1}.heading h1{font-size:17px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;line-height:1.5}.heading span{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:5px;line-height:1.5;margin-top:1px}.heading i{width:5px;height:5px;border-radius:50%;background:#b0b8b1}.heading span.online i{background:#559365}.heading span.busy i{background:#d49744}.content{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:18px 18px 25px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}.older{display:block;margin:0 auto 20px;border:0;padding:10px 16px;color:var(--muted);font-size:12px;background:none}.message{margin:0 0 22px;min-width:0}.message .role{color:var(--muted);font-size:11px;margin-bottom:8px;display:flex;align-items:center;gap:7px}.message.user{display:flex;flex-direction:column;align-items:flex-end;padding-left:28px}.message.user .bubble{background:#e6eee8;border-radius:17px 17px 4px 17px;padding:12px 15px;max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;line-height:1.75}.message.assistant .bubble,.message.plan .bubble{font-size:15px;line-height:1.85;overflow-wrap:anywhere}.message.assistant .role::before{content:"";background:var(--green);width:6px;height:6px;border-radius:3px}.message.commentary .bubble{color:#65756b;font-size:14px}.message .bubble p+p{margin-top:10px}.message .bubble h2,.message .bubble h3{font-size:16px;font-weight:650;margin:18px 0 7px}.message .bubble h2:first-child,.message .bubble h3:first-child{margin-top:0}.message .bubble ul,.message .bubble ol{padding-left:21px;margin:8px 0}.message .bubble li{padding-left:1px;margin:5px 0}.message code{background:#eaf0eb;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;padding:2px 4px;font-size:12px;border-radius:4px}.code-wrap{position:relative;margin:12px 0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#eef2ee}.code-wrap pre{margin:0;padding:32px 13px 13px;overflow:auto;max-height:340px;font-size:12px;line-height:1.65;white-space:pre}.code-wrap code{background:none;padding:0}.copy-code{position:absolute;right:6px;top:4px;border:0;background:none;font-size:11px;color:var(--muted);height:28px;padding:0 9px}.message-actions{display:flex;gap:12px;margin-top:10px}.message-actions button{border:0;background:none;font-size:11px;color:var(--muted);padding:5px 0;min-height:28px}.table-scroll{overflow:auto;max-width:100%;margin:12px 0;border:1px solid var(--line);border-radius:9px}.bubble table{font-size:12px;border-collapse:collapse;min-width:100%}.bubble th,.bubble td{padding:8px 10px;border-bottom:1px solid var(--line);border-right:1px solid var(--line);text-align:left;white-space:normal;min-width:80px}.bubble th{background:#edf2ed}.bubble blockquote{border-left:3px solid #b2c6b8;color:var(--muted);padding-left:12px;margin:12px 0}.activity-row{font-size:11px;color:#8a958e;margin:-10px 0 18px;display:flex;align-items:center;gap:6px}.activity-row::before{content:"";width:4px;height:4px;border-radius:50%;background:#bac7bd}.activity{color:#74847a;font-size:12px;display:flex;align-items:center;gap:8px;padding:6px 0 0}.pulse{height:6px;width:6px;background:#6d9b79;border-radius:50%;animation:pulse 1.5s ease-in-out infinite}@keyframes pulse{50%{opacity:.25}}.composer-area{flex-shrink:0;padding:7px 14px calc(12px + env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--line)}.status-line{min-height:24px;display:flex;align-items:center;justify-content:space-between;padding:0 5px 6px;gap:10px}.status-line span{font-size:11px;color:var(--muted);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.status-line button{border:0;background:none;font-size:11px;color:#a46f56;min-height:24px;padding:0 3px;flex-shrink:0}.composer{display:flex;align-items:flex-end;background:white;border:1px solid #dbe4dd;border-radius:20px;padding:7px 7px 7px 13px;box-shadow:0 2px 8px #243c2b04;gap:5px}.composer textarea{flex:1;width:100%;min-width:0;resize:none;border:0;background:none;line-height:1.5;max-height:148px;padding:8px 0;font-size:16px;overflow:auto;color:var(--ink)}.composer textarea::placeholder{color:#a1aba4;font-size:14px}.composer button{border:0;flex-shrink:0;width:38px;height:38px;border-radius:50%;background:var(--green);color:white;display:grid;place-items:center}.composer button:disabled{background:#e9eeea;color:#a6b3a9}.composer button svg{width:20px;height:20px}.jump-bottom{position:absolute;bottom:132px;right:18px;border:1px solid var(--line);background:white;box-shadow:0 4px 18px #23372910;border-radius:25px;padding:10px 14px;font-size:12px}.empty-state{padding:36px 8px 15px}.empty-state h2{font-size:22px;margin-top:20px;font-weight:650}.empty-state p{font-size:13px;color:var(--muted);margin:10px 0 25px}.empty-state button{display:flex;align-items:center;justify-content:space-between;width:100%;background:white;border:1px solid var(--line);border-radius:14px;text-align:left;padding:15px 14px;margin-bottom:10px;font-size:13px}.empty-state button span{color:#88a08e}.sheet{position:fixed;top:auto;bottom:0;width:min(100%,600px);max-height:86dvh;margin:0 auto;padding:20px 20px calc(24px + env(safe-area-inset-bottom));border:0;border-radius:24px 24px 0 0;background:#fafbfa;color:var(--ink);box-shadow:0 -5px 30px #25362c12}.sheet::backdrop{background:#18282065}.sheet-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.sheet-header h2{font-size:19px;font-weight:650}.sheet-header .icon-button{width:36px;height:36px;color:var(--muted)}.thread-list{overflow:auto;max-height:48dvh}.thread-list button{display:flex;flex-direction:column;align-items:flex-start;text-align:left;border:1px solid transparent;background:white;border-radius:12px;padding:14px 13px;min-height:60px;width:100%;margin-bottom:8px;gap:6px}.thread-list button.current{border-color:#accab5;background:#edf3ee}.thread-list button strong{font-size:14px;font-weight:550;word-break:break-word}.thread-list button span{font-size:11px;color:var(--muted)}.sheet-actions{border-top:1px solid var(--line);padding-top:18px;margin-top:16px;display:flex;justify-content:space-between}.sheet-actions button{background:none;border:0;min-height:40px;font-size:13px;color:var(--muted)}.sheet-note{font-size:11px;line-height:1.7;color:#909b93;margin-top:12px}.settings-form{display:flex;flex-direction:column;gap:12px}.toast{position:fixed;bottom:calc(132px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:max-content;max-width:calc(100% - 40px);background:#243b2eee;color:white;z-index:10;padding:12px 17px;border-radius:14px;font-size:13px;line-height:1.6;box-shadow:0 4px 16px #243b2e15}.question-card{border:1px solid #c0d6c6;background:#eff5f0;border-radius:16px;padding:15px;margin-bottom:20px}.question-card h3{font-size:14px;line-height:1.7;margin-bottom:10px}.question-card label{display:flex;gap:9px;align-items:flex-start;font-size:13px;line-height:1.7;padding:8px 0}.question-card input[type=radio]{accent-color:var(--green);margin-top:5px}.question-card input[type=text]{width:100%;padding:11px;border:1px solid var(--line);border-radius:9px;font-size:16px}.question-card .primary{margin-top:12px;min-height:44px;font-size:13px}.view-empty{padding:50px 10px;text-align:center;color:var(--muted);font-size:14px;line-height:1.9}@media(max-width:360px){.login-screen{padding-left:22px;padding-right:22px}.login-screen h1{font-size:27px}.content{padding-left:14px;padding-right:14px}}@media(prefers-reduced-motion:reduce){.pulse{animation:none}}@media(prefers-color-scheme:dark){:root{color-scheme:dark;--ink:#e4ebe5;--muted:#8d9e92;--green:#91c4a0;--line:#303e34;--paper:#18241d;background:var(--paper)}.workspace,.sheet{background:#1b2921}.composer,.empty-state button,.thread-list button,.login-form input,.settings-form input{background:#24352a}.composer textarea{color:var(--ink)}.composer{border-color:#405345}.primary,.composer button{color:#17251c!important}.message.user .bubble,.question-card,.thread-list button.current{background:#2d4435}.message code,.code-wrap,.bubble th{background:#293d31}.jump-bottom{background:#2a3e30}.composer button:disabled{background:#35473a}.message.commentary .bubble{color:#a0b2a5}.toast{background:#c2dbc9;color:#193121}}

.topbar{border-bottom:1px solid var(--line)}.topbar-action{width:auto;min-width:60px;padding:0 4px;display:flex;align-items:center;justify-content:center;gap:4px;font-size:12px}.topbar-action svg{width:18px;height:18px}

.text-button{display:block;border:0;background:none;font-size:13px;color:var(--green);padding:12px;margin:8px auto;min-height:44px}.device-description{font-size:13px;line-height:1.8;color:var(--muted);margin-bottom:18px}.recovery-code{width:100%;resize:none;min-height:90px;padding:14px;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:12px;font:15px/1.8 ui-monospace,SFMono-Regular,monospace;overflow-wrap:anywhere}.recovery-actions{display:flex;justify-content:space-around;gap:10px}.recovery-check{display:flex;align-items:center;gap:9px;font-size:13px;margin:10px 0 20px;min-height:40px}.recovery-check input{accent-color:var(--green)}.settings-form input{height:48px}.sheet .settings-form{gap:10px}